Climate and monthly weather forecastCastleisland, Ireland
Climate and monthly weather forecast
Weather in January
January, the same as December, in Castleisland, Ireland, is another chilly winter month, with an average temperature fluctuating between 8.2°C (46.8°F) and 5.3°C (41.5°F). January is the coldest month, with the temperature often reaching an average high of 8.2°C (46.8°F) and an average low of 5.3°C (41.5°F). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Castleisland, Ireland, with an average temperature ranging between max 8.3°C (46.9°F) and min 4.7°C (40.5°F). The average high-temperature during February is a still chilly 8.3°C (46.9°F), almost matching the conditions of the preceding month. Weather in February »Weather in March
March, the first month of the spring in Castleisland, is still a chilly month, with an average temperature ranging between min 4.8°C (40.6°F) and max 9.5°C (49.1°F). March experiences an average high-temperature of a still chilly 9.5°C (49.1°F), barely different from February's 8.3°C (46.9°F). Weather in March »Weather in April
April is a fresh spring month in Castleisland, Ireland, with temperature in the range of an average low of 6.3°C (43.3°F) and an average high of 11.5°C (52.7°F). The arrival of April denotes a barely perceptible change in the average high-temperatures to a fresh 11.5°C (52.7°F) from March's 9.5°C (49.1°F). Weather in April »Weather in May
May, the last month of the spring in Castleisland, is a refreshing month, with an average temperature ranging between max 13.3°C (55.9°F) and min 8.3°C (46.9°F). Castleisland ushers in May with an average high-temperature of a refreshing 13.3°C (55.9°F), showing a close resemblance to the previous month. Weather in May »Weather in June
June, the first month of the summer in Castleisland, is still a mild month, with an average temperature ranging between min 10.7°C (51.3°F) and max 15.7°C (60.3°F). Castleisland registers an average high-temperature of a still refreshing 15.7°C (60.3°F) with the arrival of June, showing minor deviation from the preceding month. Weather in June »Weather in July
July in Castleisland, Ireland, is a comfortable summer month, with temperature in the range of an average high of 16.8°C (62.2°F) and an average low of 12.3°C (54.1°F). July is the warmest month, with an average high-temperature of 16.8°C (62.2°F) and an average low-temperature of 12.3°C (54.1°F). Weather in July »Weather in August
August, the last month of the summer in Castleisland, is another refreshing month, with temperature in the range of an average low of 12.2°C (54°F) and an average high of 16.7°C (62.1°F). Upon the beginning of August, Castleisland's high-temperatures register at a still enjoyable 16.7°C (62.1°F), closely mirroring the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a refreshing month in Castleisland, Ireland, with an average temperature varying between 15.6°C (60.1°F) and 10.7°C (51.3°F). As September takes its course, Castleisland's average high-temperature registers at a moderate 15.6°C (60.1°F), closely aligning with the preceding month. Weather in September »Weather in October
October, like September, is a moderate autumn month in Castleisland, Ireland, with an average temperature varying between 13.3°C (55.9°F) and 9.3°C (48.7°F). October commences with an average high-temperature of a still moderate 13.3°C (55.9°F), showing little deviation from September's 15.6°C (60.1°F). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Castleisland, Ireland, with temperature in the range of an average high of 10.2°C (50.4°F) and an average low of 6.9°C (44.4°F). November's onset introduces a mild reduction in the average high-temperature, from a refreshing 13.3°C (55.9°F) in October to a fresh 10.2°C (50.4°F). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Castleisland, Ireland, with an average temperature ranging between min 5.6°C (42.1°F) and max 8.7°C (47.7°F). With the onset of December, Castleisland's average high-temperature clocks in at a frosty 8.7°C (47.7°F), showing a minor fluctuation from the previous month. Weather in December »Updated: Jul 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Castleisland's coldest month, January, generally records average temperatures ranging from a high of 8.2°C (46.8°F) to a low of 5.3°C (41.5°F).
In Castleisland, during the entire year, the rain falls for 229.7 days and collects up to 704mm (27.72") of precipitation.
January through March, November and December are months with snowfall.
In Castleisland, during the entire year, snow falls for 3.2 days and aggregates up to 48mm (1.89") of snow.
The months with the least sunshine are January and December, with an average of 3.8h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
The least humid month is April, with an average relative humidity of 82%.
April through October are months without snowfall.
The month with the least rainfall is May, when the rain falls for 18.8 days and typically collects 42mm (1.65") of precipitation.
The months with the highest UV index are May, June and August, with an average maximum UV index of 4.
June has the longest days of the year in Castleisland, with an average of 16h and 42min of daylight.
The month with the most sunshine is June, with an average of 7.7h of sunshine.
July is the warmest month, with an average high-temperature of 16.8°C (62.2°F) and an average low-temperature of 12.3°C (54.1°F).
The months with the highest humidity are July through October, with an average relative humidity of 86%.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from IST to GMT. Daylight Saving Time ends on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to IST.
The month with the most rainfall in Castleisland is December, when the rain falls for 20.4 days and typically aggregates up to 80mm (3.15") of precipitation.
December is the month with the most snowfall in Castleisland. Snow falls for 0.8 days and accumulates 16mm (0.63") of snow.
December has the shortest days of the year, with an average of 7h and 48min of daylight.
Average temperature
Castleisland, Ireland
The warmest month (with the highest average high temperature) is July (16.8°C).
The month with the lowest average high temperature is January (8.2°C).
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is February (4.7°C).
Average pressure
Castleisland, Ireland
- Average pressure in January:
1011.7mbar - Average pressure in February:
1011.2mbar - Average pressure in March:
1014.3mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1015.6mbar
- Average pressure in July:
1014.4mbar - Average pressure in August:
1013.1mbar - Average pressure in September:
1015.6mbar - Average pressure in October:
1012.2mbar - Average pressure in November:
1008.5mbar - Average pressure in December:
1011.2mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.5mbar).
Average wind speed
Castleisland, Ireland
- Average wind speed in January:
23.4km/h - Average wind speed in February:
23.7km/h - Average wind speed in March:
20.4km/h - Average wind speed in April:
17.7km/h - Average wind speed in May:
17.7km/h - Average wind speed in June:
15.8km/h
- Average wind speed in July:
15.5km/h - Average wind speed in August:
16.8km/h - Average wind speed in September:
17.8km/h - Average wind speed in October:
18.5km/h - Average wind speed in November:
21.7km/h - Average wind speed in December:
23.8km/h
The windiest month (with the highest average wind speed) is December (23.8km/h).
The calmest month (with the lowest average wind speed) is July (15.5km/h).
Average humidity
Castleisland, Ireland
The months with the highest relative humidity are July, August, September and October (86%).
The month with the lowest relative humidity is April (82%).
Average rainfall
Castleisland, Ireland
The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is May (42mm).
Average rainfall days
Castleisland, Ireland
- Average rainfall days in January:
21.8 days - Average rainfall days in February:
17.8 days - Average rainfall days in March:
17.4 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
21.3 days - Average rainfall days in August:
21.1 days - Average rainfall days in September:
17.7 days - Average rainfall days in October:
19.7 days - Average rainfall days in November:
19.9 days - Average rainfall days in December:
20.4 days
The month with the highest number of rainy days is January (21.8 days).
The month with the least rainy days is April (16.5 days).
Average snowfall
Castleisland, Ireland
The month with the highest snowfall is December (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Castleisland, Ireland
- Average snowfall days in January:
0.7 days - Average snowfall days in February:
0.9 days - Average snowfall days in March:
0.6 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Castleisland, Ireland
- Average daylight in January:
8h and 18min - Average daylight in February:
9h and 54min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 42min - Average daylight in June:
16h and 42min
- Average daylight in July:
16h and 12min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 48min - Average daylight in December:
7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 6min - Average sunshine in April:
6h and 54min - Average sunshine in May:
6h and 30min - Average sunshine in June:
7h and 42min
- Average sunshine in July:
6h and 18min - Average sunshine in August:
6h and 18min - Average sunshine in September:
5h and 48min - Average sunshine in October:
4h and 30min - Average sunshine in November:
3h and 54min - Average sunshine in December:
3h and 48min
The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days
Castleisland, Ireland
- Average sunshine days in January:
6.7 days - Average sunshine days in February:
7.8 days - Average sunshine days in March:
9.8 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
9.5 days
- Average sunshine days in July:
7 days - Average sunshine days in August:
6.2 days - Average sunshine days in September:
9.6 days - Average sunshine days in October:
8.1 days - Average sunshine days in November:
7.7 days - Average sunshine days in December:
7.6 days
The month with the most sunshine days is April (10.8 days).
The month with the least sunshine days is August (6.2 days).
Average UV index
Castleisland, Ireland
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Castleisland, Ireland
The month with the most cloud cover is July (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 53).
Average visibility
Castleisland, Ireland
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
